You simply don't get it. Your hardware is - in part at least - crap. Having chosen it nonetheless in the first place and now complaining to get a software patched to remedy your hardware's faults, is nothing but ridiculous.
And now you even demand a patch, because, well, you've paid 20 bucks and that - of course - entitles you to demand even the most stupid features.
I'm not negative (admitted, the Seagate drives are crap to me), but honest: you chose bad hardware, it's your fault hence your responsibility to fix that than to request a useless feature.
Anyway, requesting a feature to remedy bad equipment is just wrong.
Skipping identical files is pretty much resuming. TeraCopy has no other way to tell which files are already done but by at least comparing their hashes - which might take awhile.
As a Pro user, I'd _happily_ even pay another 5 or 10 bucks if this would be implemented.
Done as a plugin, future monetization (of the Pro version) would be possible and honor the development costs such a feature caused.
Customer support service by UserEcho